Something weird is happening in our galaxy - Ashkbiz Danehkar

TL;DR

Massive energy structures discovered in the Milky Way challenge previous understanding of the galaxy's central region.

Transcript

In November 2010, NASA announced the discovery of a strange, never-before-seen galactic object: two gigantic gaseous bubbles, each emanating an impressive 25,000 light years from the center of our home galaxy, the Milky Way. Inside the structures, named the Fermi Bubbles, streams of high energy particles traveling faster than the surrounding medium... Read More

Key Insights

• 🫵 Discovery of massive Fermi and eROSITA Bubbles challenges previous views of the Milky Way's central region.
• ✴️ The origin of these structures is debated between star formation outbursts and activity from the supermassive black hole, Sagittarius A*.
• 😥 Computational simulations help understand the formation of these structures, pointing towards extreme outbursts from Sagittarius A* as a significant contributing factor.

Questions & Answers

Q: What are the Fermi Bubbles, and why are they significant?

The Fermi Bubbles are gigantic gaseous structures emitting gamma rays from the center of the Milky Way, challenging previous beliefs about the galaxy's calmness and showcasing immense energy events.

Q: What are the eROSITA bubbles, and how do they relate to the Fermi Bubbles?

The eROSITA bubbles are wider structures emitting soft X-rays, overlapping the Fermi Bubbles and likely sharing a single origin, hinting at a massive energy event in the Milky Way's recent history.

Q: What theories exist about the creation of these massive galactic structures?

Two main theories suggest the Fermi and eROSITA Bubbles originate from either massive star formation outbursts or powerful outbursts from the supermassive black hole, Sagittarius A*, at the Milky Way's center.

Q: How are supercomputers and simulations used to study the creation of these structures?

Scientists utilize hydrodynamic numerical simulations to explore physical conditions contributing to bubble formation, indicating that Sagittarius A* likely played a role while leaving room for other factors like past star formations and external influences.

Summary & Key Takeaways

• NASA discovered massive gaseous Fermi Bubbles emitting gamma rays from the Milky Way's center.

• Astronomers found eROSITA bubbles, emitting soft X-rays, overlapping the Fermi Bubbles.

• The origin of these structures is debated between star formation outbursts and the supermassive black hole's activity.